17-letter words containing m, a, n
- harmonic interval — an intervening period of time: an interval of 50 years.
- heat of formation — the heat evolved or absorbed when one mole of a compound is formed from its constituent atoms
- heavy mineral oil — a colorless, oily, almost tasteless, water-insoluble liquid, usually of either a standard light density (light mineral oil) or a standard heavy density (heavy mineral oil) consisting of mixtures of hydrocarbons obtained from petroleum by distillation: used chiefly as a lubricant, in the manufacture of cosmetics, and in medicine as a laxative.
- heimlich maneuver — an emergency rescue procedure for application to someone choking on a foreign object, in which the rescuer places a fist between the victim's lower ribs or upper abdomen from behind and exerts sudden pressure in the form of thrusts of sufficient force to help eject the object from the windpipe.
- hemoconcentration — an increase in the concentration of cellular elements in the blood, resulting from loss of plasma.
- heteronormativity — The view that all human beings are either male or female, both in sex and in gender, and that sexual and romantic thoughts and relations are normal only when between people of different sexes.
- histamine blocker — any of various substances that act at a specific receptor site to block certain actions of histamine.
- ho chi minh trail — a network of jungle paths winding from North Vietnam through Laos and Cambodia into South Vietnam, used as a military route by North Vietnam to supply the Vietcong during the Vietnam War.
- hoare powerdomain — powerdomain
- hold sb to ransom — If you say that someone is holding you to ransom in British English, or holding you for ransom in American English, you mean that they are using their power to try to force you to do something which you do not want to do.
- hollerith, herman — Herman Hollerith
- holy roman empire — a Germanic empire located chiefly in central Europe that began with the coronation of Charlemagne as Roman emperor in a.d. 800 (or, according to some historians, with the coronation of Otto the Great, king of Germany, in a.d. 962) and ended with the renunciation of the Roman imperial title by Francis II in 1806, and was regarded theoretically as the continuation of the Western Empire and as the temporal form of a universal dominion whose spiritual head was the pope.
- homeland security — national defence
- homogentisic acid — an intermediate compound in the metabolism of tyrosine and of phenylalanine, found in excess in the blood and urine of persons affected with alkaptonuria.
- homovanillic acid — the end product of dopamine metabolism, C 9 H 10 O 4 , found in human urine.
- honorable mention — a citation conferred on a contestant, exhibit, etc., having exceptional merit though not winning a top honor or prize.
- hormone treatment — any of several medical treatments using hormones
- household ammonia — diluted ammonia, often having a small quantity of detergent, used in the home for cleaning.
- human engineering — an applied science that coordinates the design of devices, systems, and physical working conditions with the capacities and requirements of the worker.
- human trafficking — the illegal practice of procuring or trading in human beings for the purpose of prostitution, forced labor, or other forms of exploitation.
- hydrothermal vent — an opening on the floor of the sea from which hot, mineral-rich solutions issue. Compare vent1 (def 2).
- hydroxytryptamine — (organic compound) Any hydroxy derivative of tryptamine, but especially 5-hydroxytryptamine (serotonin).
- hyperalimentation — overfeeding.
- hyperpigmentation — coloration, especially of the skin.
- hypophrygian mode — a plagal church mode represented on the white keys of a keyboard instrument by an ascending scale from B to B, with the final on E.
- i am bound to say — You can say 'I am bound to say' to introduce a statement expressing something that you find undesirable or unexpected.
- i will/can manage — You say 'I can manage' or 'I'll manage' as a way of refusing someone's offer of help and insisting on doing something by yourself.
- iambic pentameter — a verse line consisting of five metrical iambs
- illegal immigrant — a person who has entered a country illegally
- image enhancement — a method of improving the definition of a video picture by a computer program, which reduces the lowest grey values to black and the highest to white: used for pictures from microscopes, surveillance cameras, and scanners
- image intensifier — any of various devices for amplifying the intensity of an optical image, sometimes used in conjunction with an image converter
- image recognition — (graphics, artificial intelligence) The identification of objects in an image. This process would probably start with image processing techniques such as noise removal, followed by (low-level) feature extraction to locate lines, regions and possibly areas with certain textures. The clever bit is to interpret collections of these shapes as single objects, e.g. cars on a road, boxes on a conveyor belt or cancerous cells on a microscope slide. One reason this is an AI problem is that an object can appear very different when viewed from different angles or under different lighting. Another problem is deciding what features belong to what object and which are background or shadows etc. The human visual system performs these tasks mostly unconsciously but a computer requires skillful programming and lots of processing power to approach human performance.
- imitation doublet — a doublet formed entirely of glass.
- immediate annuity — an annuity bought with a single premium, with payments to the annuitant to begin at the end of one payment period, as a month or a year.
- immediate version — child version
- immigrant workers — people who work in a country they arrived to in order to settle there
- immunodiagnostics — the determination of immunologic characteristics of individuals, cells, and other biologic entities.
- immunosuppressant — (pharmacology) Capable of immunosuppression, immunosuppressive.
- immunotherapeutic — (immunology, medicine) Of a pharmaceutical, acting on the immune system to treat disease; used in immunotherapy.
- impersonalization — to make impersonal: The dial system impersonalized the telephone.
- impersonification — (archaic) the act of impersonating; impersonation.
- implosion therapy — a form of behavior therapy involving intensive recollection and review of anxiety-producing situations or events in a patient's life in an attempt to develop more appropriate responses to similar situations in the future.
- impracticableness — The state of being impracticable; impracticability.
- impressionability — easily impressed or influenced; susceptible: an impressionable youngster.
- improper fraction — a fraction having the numerator greater than the denominator.
- improper integral — Also called infinite integral. a definite integral in which one or both of the limits of integration is infinite.
- improvement grant — a sum of money provided by a government, local authority, or public fund to finance the amelioration of a building, area of land, etc
- improvisationally — In an improvisational way.
- imputation system — a former taxation system in which some, or all, of the corporation tax on a company was treated as a tax credit on account of the income tax paid by its shareholders on their dividends; discontinued from 1999
- in (great) demand — If someone or something is in demand or in great demand, they are very popular and a lot of people want them.